Home / 158,450.23-218,659.45-85,851.70

Finding the Fourth Proportional to 158,450.23, 218,659.45 and 85,851.70

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Solution

The fourth proportional to 158,450.23, 218,659.45 and 85,851.70 is: 118,474.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,450.23 : 218,659.45 = 85,851.70 : x
  2. Step 2: Convert to fraction form
    158,450.23/218,659.45 = 85,851.70/x
  3. Step 3: Cross multiply
    158,450.23x = 218,659.45 × 85,851.70
  4. Step 4: Simplify right side
    158,450.23x = 18,772,284,903.26
  5. Step 5: Solve for x
    x = 18,772,284,903.26/158,450.23
  6. Step 6: Final answer
    x = 118,474.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.